Brief Answer:
Intestines infection
Detailed Answer:
Hello!
Thank you for the query.
Your symptoms indicate bacterial infection of intestines. Any diarrhea with blood needs to be checked with stool tests.
Pleas visit your doctor and do not wait any longer. Antibiotics are necessary after stool culture test. If no infection will be found, colonoscopy should be next.
Hope this will help. Feel free to ask further questions.
Regards